The left-hand side is mostly CDs (the ones I haven't ripped to my computer), cookbooks, games, and VHS tapes; the right-hand side is DVDs (three deep on each shelf, the two cases hold 40 each). The middle (behind guest cat) are some more VHS tapes.
Close up on the DVD shelves:
These are the CDs which I have ripped to the computer:
I forget how many CDs each case holds; something like 50-60, I think.
The ripped library:
iTunes doesn't tell me anymore exactly how many songs I have, but when I had the old iTunes which did, it was around 12,000 songs.
And, well, a side effect of media poisoning (which I am clearly suffering from)...